Bought bleach yesterday, only concentration I could find was 8.25% that didn't have perfumes or other ingredients. So do I need 8.25/5 (my Newmar manual states 5% bleach usage) or 0.1515 cups per 15 gallons of tank capacity. For my 75 gallon tank, this comes out to 3/4 cup rather than 1.25 cups of bleach. According to my calculations this comes out to 50 ppm. I double checked using a different method.
2005 Newmar Kountry Star 3742 - Gas
ACME Eze Tow Dolly
2008 Chevy Malibu Toad